lyman white



L. 3. WHITE.

Wick Raiser.

Patent 6d Sept. 5, 1854.

'UNITED STATES PATENT OFFICE.

LE ROY S. WHITE, OF CI-IICOPEE, MASSACHUSETTS, ASSIGNOR TO HIMSELF, LEWIS WHITE, OF HARTFORD, CONNECTICUT, LYMAN \VHITE, OF SPRINGFIELD, MASSACHUSETTS, AND AUGUSTUS G. STEVENS, OF MANCHESTER, NE\V HAMPSHIRE.

RAILWAY-LAMP.

Specification of Letters Patent No.

To all whom it may concern Be it known that I, LE ROY S. WHITE, of Chicopee, in the county of Hampden and State of Massachusetts, have invented an Improved Argand Solar Lam for Railway-Carriages; and I do hereby eclare that the same is fully described and represented in the following specification and the acc0mpanying drawings, letters, figures, and references thereof.

Of the said drawings Figure 1, denotes a top View of my improved lamp. Fig. 2, is a side elevation of it. Fig. 3, is a vertical, central, and longitudinal section of it.

In the said drawings, A, represents the main reservoir or oil fountain of the lamp. Under the bottom of this reservoir is what is termed the secondary reservoir or'oil and carbon receiver, B, which in this instance consists of a close chamber having two tubes, C, D, extending out of its top, the fomer, viz C, being made to stand vertically above the chamber and to constitute what is termed the wick tube, while the latter is made to extend in an inclined direction from the chamber, B, and entirely through the main oil reservoir, A, and to open out of its top as seen in Fig. 3. The upper part of the reservoir A, is provided with a circular trough, E, which is so made as to extend entirely around or encircle the tubular wick, F, that encompasses the wick tube, C. This trough is provided with a filling orfice, G, through'which when oil or combustible fluid is poured into the trough, E, such fluid may be caused to descend into the main reservoir, A. Whenever it becomes necesary to discharge from the secondary chamber, B, the oil and carbonaceous matter which may have accumulated therein, we have only to tip the lamp so as to cause it to pass out of the inclined tube, D; during which operation none of the contents of the reservoir can pass out or be spilled therefrom in consequence of the position of the filling orifice, G.

The air for the supply of the internal current of the wick-passes down the inclined tube, D, into the secondary chamber, B, and thence up the tube, C. Encircling the said wick tube is what I term the wick holder, H, which is a short tube made to slide freely upon the wick tube and to screw into an arm I, made to embrace the wick tube and to extend from a female screw,

11,657, dated September 5, 1854.

K; down through which a long male screw, L, extends. The said male screw is to be applied to and within the oil reservoir, A, in such manner that it can only be capable of a rotary movement on its axis, it being stationary in other respects relative to the lamp fountain. The milled head, a, of the screw extends above the lamp fountain and so as to enable a person by applying his hand thereto and rotating the screw to elevate and depress the wick holder and the tubular wick fastened to it in any proper manner.

The above mode of arranging and applying the wick moving mechanism with respect to the wick tube and lamp fountain not only presents the advantage of cheapness of construction in relation to the common manner of constructing the wick tube of argand burners, viz, by a surrounding tube and helix groove of the wick tube, but other advantages which will be readily apparent to persons skilled in the use and 0011- struction of Argand lamps.

The solar cone of my improved lamp is seen at M. It rests within the circular trough E, and is supported on feet, .7), b, so as to allow air to pass freely underneath it and to the flame of the wick. The glass chimney, N, is placed directly on and supported by this cone, it being made to rest upon a lip or shelf 0, 0, extending entirely around the cone. The chimney is confined in position by means of a screw ring or cap, 0, which is'made to screw down upon and around the circular trough E, and is formed with its internal diameter somewhat larger than that part of the chimney which it immediately surrounds. The said ring is also provided with four or any other suitable number of bearers or sheds d, d, d &c., see Figs. 4 and 5, which are top and bottom views of the said screw ring or cap, 0. These bearers being made to rest upon the projecting lip, e, e, at the lower end of the chimney when the ring or cap, 0, is screwed down so as to firmly secure the cap in place. Each of the bearers projects a short distance below the top flanch, P, of the cap ring, and so as to allow air for supplying an outer current of the wick to pass down between the glass chimney and the cap ring and underneath the solar cone, M.

In the construction of Argand lamps for railway passenger cars it is very necessary owing to the jar and motion to which they are continually subjected, that there should be not only as few means as possible for the oil to escape, but that their parts should be so combined as not to be readily detached from one another.

My lamp whose fountain is attached to a supporting board, P, by means of a dovetail connection will be found topossess simplicity in its construction and adavantages in other respects which render it highly useful for the purpose for which it is intended.

I do not claim the employment of a tube or passage descending through the burner so as to admit air to the interior of the wick tube and flame; but

What I do claim is The arrangement and the filling orifice and the air tube leading out'of the closed secondary oil and carbon receiver or chamber, B, under the wick tube, 0, such arrangement consisting in placing the filling orifice, G, on the upper part and at or near, one end of the lamp as described, and carrying the oil tube D, in an inclined direction through the main oil chamber, A, and out of the top thereof whereby the contents of the secondary oil receiver may be emptied from the said receiver and through the tube, D, Without danger of spilling the contents of the main oil receiver out of the filling orifice thereof.

' In testimony whereof I have hereunto set my signature this twenty second day *of July A. D. 1854. Y 1

LE ROY s. WHITE.

Witnesses: CHAS. R. LADD, Gno. E..LovnJoY. 

